TREA

Douglas Clarkson

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  • Aughton, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Microbiological control agent
    • Patent number 5,023,267
    • Issue date Jun 11, 1991
    • W. R. Grace & Co.-Conn.
    • Douglas Clarkson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Microbiological control process
    • Patent number 4,863,616
    • Issue date Sep 5, 1989
    • W. R. Grace & Co.-Conn.
    • Douglas Clarkson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
  • Information Patent Grant

    Biocide
    • Patent number 4,853,411
    • Issue date Aug 1, 1989
    • W. R. Grace & Co.-Conn.
    • Douglas Clarkson
    • C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE